[Conduction disorder caused by conjunctival instillation of timolol. Description of a case]. / Turba di conduzione da timololo per instillazione congiuntivale. Descrizione di un caso.

We report the case of a 46-year-old man, in whom A-V node electrophysiologic properties was worsened after therapeutic conjunctival instillation of timolol. We suggest that periodic, careful controls of the AV conduction are warranted in patients taking ocular hypertensive chronic timolol therapy.